A radio or T.V. set which uses valves does not start operating immediately when it is switched on, whereas a set containing only transistors does operate immediately because

A radio or T.V. set which uses valves does not start operating immedia

1.	A radio or T.V. set which uses valves does not start operating immediately when it is switched on, whereas a set containing only transistors does operate immediately because
Answer» transistor set has a lower resistance valve set operates at higher voltage filaments of valves TAKE time to HEAT up all of these are TRUE ANSWER :C

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A radio or T.V. set which uses valves does not start operating immediately when it is switched on, whereas a set containing only transistors does operate immediately because

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